The Pasteur Institute, Kasauli, India: stages in the preparation of the rabies vaccine: rabbit brains suspended in ether (right) and preserved in glycerine (left). Photograph, ca. 1910.

1910

1 photograph : photoprint ; sheet 18.5 x 25.1 cm

On the right is a brain suspended in ether. It is left in ether for 84 hours or 72 hours according to requirements. After the period of immersion is completed the brain is removed from the ether and preserved in 50 per cent glycerine (test tube on left) till required for use

Wellcome Collection 570994i